US4990138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter apparatus, and compositions useful for producing same
Assignee: Edwards Lifesciences Corp
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Filing: 1989-07-18
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Granted: 1991-02-05
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Expires: 2009-07-18
Abstract
Abstract An everting balloon catheter having a distal end opening defined by a beveled rim is disclosed. The distal end portion of a catheter, e.g., an everting balloon catheter, can be made radioopaque by bonding a distal end portion comprising a polymeric material doped with a major amount of radioopaque metals onto a catheter body. Alternately, a composition comprising polymeric adhesives, and/or precursors of polymeric adhesives, and a major amount of radioopaque metal components can be placed, e.g., painted on the distal end portion of a catheter body to provide the desired degree of radioopacity.
Inventors
- 👤 Steven R. Bacich
- 👤 Ronald J. Jabba
- 👤 Manouchehr Miraki
- 👤 Robert Skribiski
- 👤 Louis Seiler, Jr.
- 👤 Robert L. Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0119; A61M2205/00; A61M2205/32
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
83 words
An apparatus for insertion into the body of a patient comprising: a flexible catheter tube sized and adapted to be inserted into the body of a patient; said catheter tube having a distal end portion and a body portion located proximally of said distal end portion; said catheter tube including a distal end opening defined by a rim which is beveled; and balloon means attached to said catheter tube and capable of being inverted in said catheter tube and of being everted therefrom.
Claim 2
Independent Claim
83 words
An apparatus for insertion into the body of a patient comprising: a flexible catheter tube sized and adapted to be inserted into the body of a patient; said catheter tube having a distal end portion and a body portion located proximally of said distal end portion; said catheter tube including a distal end opening defined by a rim which is beveled; and balloon means attached to said catheter tube and capable of being inverted in said catheter tube and of being everted therefrom.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1 wherein said distal end portion has increased flexibility relative to said body portion.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1 wherein said catheter tube further includes a lumen and said distal end opening is the distal termination of said lumen.
Claim 5
Dependent Claim
16 words
The apparatus of claim 1 wherein said distal end portion has a substantial degree of radioopacity.
Claim 6
Dependent Claim
26 words
The apparatus of claim 1 wherein said beveled rim facilitates the folding of said balloon means as said balloon means is inverted into said catheter tube.
Claim 7
Dependent Claim
25 words
The apparatus of claim 1 wherein said balloon means is folded into a clamshell configuration as said balloon means is inverted into said catheter tube.
Claim 8
Dependent Claim
16 words
The catheter of claim 1 wherein the beveling of said rim has a curved axial profile.
Claim 9
Dependent Claim
18 words
The catheter of claim 1 wherein the beveling of said rim has a substantially symmetrical curved axial profile.
Claim 10
Dependent Claim
37 words
The catheter of claim 1 which further includes an elongated member located at least partially within said catheter body, said member includes an open ended tubular element and said balloon means is secured to said tubular element.
Claim 11
Independent Claim
116 words
An apparatus for insertion into the body of a patient comprising: a catheter tube sized and adapted to be inserted in the body of a patient; said catheter tube having a distal end portion and a body portion located proximally of said and distal end portion, and a lumen; and a composition comprising a minor amount of polymeric material, and a major amount of radioopaque substance selected from the group consisting of radioopaque metal components and mixtures thereof, said composition being located on at least a portion of said distal end portion and being present in an amount effective to provide a substantial degree of radioopacity to at least a portion of said distal end portion.
Claim 12
Independent Claim
116 words
An apparatus for insertion into the body of a patient comprising: a catheter tube sized and adapted to be inserted in the body of a patient; said catheter tube having a distal end portion and a body portion located proximally of said and distal end portion, and a lumen; and a composition comprising a minor amount of polymeric material, and a major amount of radioopaque substance selected from the group consisting of radioopaque metal components and mixtures thereof, said composition being located on at least a portion of said distal end portion and being present in an amount effective to provide a substantial degree of radioopacity to at least a portion of said distal end portion.
Claim 13
Dependent Claim
22 words
The apparatus of claim 10 herein said composition is present as an intimate admixture of said polymeric material and said radioopaque substance.
Claim 14
Dependent Claim
22 words
The apparatus of claim 10 wherein said radioopaque substance is selected from the group consisting of elemental radioopaque metals and mixtures thereof.
Claim 15
Dependent Claim
28 words
The apparatus of claim 10 wherein said distal end portion has an exterior surface and said composition is located on at least a portion of said exterior surface.
Claim 16
Dependent Claim
16 words
The apparatus of claim 10 wherein said composition is adhesively bonded to said distal end portion.
Claim 17
Dependent Claim
28 words
The apparatus of claim 10 wherein said radioopaque substance is selected from the qroup consisting of gold, the platinum group metals, tungsten, molybdenum, rhenium, tantalum and mixtures thereof.
Claim 18
Independent Claim
108 words
An apparatus for insertion into the body of a patient comprising: a flexible catheter tube sized and adapted to be inserted into the body of a patient; a distal end element located distally of said catheter tube and made of a combination comprising a polymeric material and a radiopaque substance present in said combination in an amount effective to provide a substantial degree of radiopacity to said distal end element, said distal end element including a distal end opening defined by a rim which is beveled; and balloon means attached to said catheter tube and capable of being inverted in said catheter tube and of being everted therefrom.
Claim 19
Independent Claim
108 words
An apparatus for insertion into the body of a patient comprising: a flexible catheter tube sized and adapted to be inserted into the body of a patient; a distal end element located distally of said catheter tube and made of a combination comprising a polymeric material and a radiopaque substance present in said combination in an amount effective to provide a substantial degree of radiopacity to said distal end element, said distal end element including a distal end opening defined by a rim which is beveled; and balloon means attached to said catheter tube and capable of being inverted in said catheter tube and of being everted therefrom.
Claim 20
Dependent Claim
22 words
The apparatus of claim 16 wherein said radioopaque substance is selected from the group consisting of radioopaque metal components and mixtures thereof,
Claim 21
Dependent Claim
16 words
The apparatus of claim 16 wherein said distal end element is bonded to said catheter tube.
Claim 22
Dependent Claim
14 words
The apparatus of claim 16 wherein said distal end element is formed by extrusion.
Claim 23
Dependent Claim
34 words
The apparatus of claim 16 wherein said polymeric material is selected from the group consisting of ethylene vinyl acetate copolymers and mixtures thereof, and said radioopaque substance is tantalum in the form of particles.
Claim 24
Dependent Claim
18 words
The apparatus of claim 16 wherein said distal end element has increased flexibility relative to said catheter tube.
Claim 25
Dependent Claim
31 words
The apparatus of claim 16 wherein said beveled rim facilitates the folding of said balloon means as said balloon means is inverted into said catheter tube and said distal end element.
Claim 26
Independent Claim
77 words
An apparatus for insertion into the body of a patient comprising: a catheter tube sized and adapted to be inserted into the body of a patient; a composition comprising a polymeric material and a radioopaque substance present in said composition in an amount effective to provide a substantial degree of radioopacity adhesively bonded to said tube; and balloon means attached to said tube and capable of being inverted in said catheter tube, and of being everted therefrom.
Claim 27
Independent Claim
77 words
An apparatus for insertion into the body of a patient comprising: a catheter tube sized and adapted to be inserted into the body of a patient; a composition comprising a polymeric material and a radioopaque substance present in said composition in an amount effective to provide a substantial degree of radioopacity adhesively bonded to said tube; and balloon means attached to said tube and capable of being inverted in said catheter tube, and of being everted therefrom.
Claim 28
Dependent Claim
22 words
The apparatus of claim 23 wherein said radioopaque substance is selected from the group consisting of elemental radioopaque metals and mixtures thereof.
Claim 29
Dependent Claim
18 words
The apparatus of claim 23 wherein said radioopaque substance is present in the form of elemental metal particles.
Claim 30
Dependent Claim
28 words
The apparatus of claim 24 wherein said radioopaque substance is selected from the group consisting of gold, the platinum group metals, tungsten, molybdenum, rhenium, tantalum and mixtures thereof.
Claim 31
Dependent Claim
18 words
The apparatus of claim 23 and wherein the composition is applied in the form of a liquid-solid slurry.
Claim 32
Dependent Claim
27 words
The apparatus of claim 23 wherein said polymeric materials are selected from the group consisting of polyurethanes, epoxy resins, polycyanoacrylates, ethylene vinyl acetate copolymers and mixtures thereof.
Claim 33
Dependent Claim
26 words
The apparatus of claim 23 wherein said catheter tube includes at its distal end a beveled tip and said composition is adhesively bonded to said tip.
Claim 34
Dependent Claim
19 words
Apparatus according to claim 23 and wherein said balloon means is adhesively attached to said tube using said composition.
Claim 35
Dependent Claim
25 words
The catheter of claim 1 and wherein the beveling of the rim has a linear axial profile which defines an angle from the catheter axis.
Claim 36
Dependent Claim
16 words
The catheter of claim 31 and wherein the angle is about 5 to about 45 degrees.
Claim 37
Dependent Claim
13 words
The catheter of claim 32 and wherein the angle is about 17 degrees.
Claim 38
Independent Claim
145 words
An apparatus for insertion into the body of a patient comprising: a first flexible catheter tube sized and adapted to be inserted into the body of a patient, said first flexible catheter tube having a distal end portion and a body portion located proximally of said distal end portion, said first flexible catheter tube including a distal end opening defined by a rim which is beveled; a second flexible catheter tube sized and adapted to slide in said first flexible catheter tube, said second flexible catheter tube having a distal end portion and a body portion located proximally of said distal end portion and a body portion located proximally of said distal end portion; and balloon means attached to said distal end portions of said first and second catheter tubes and capable of being inverted in said first catheter tube and of being everted therefrom.
Claim 39
Independent Claim
145 words
An apparatus for insertion into the body of a patient comprising: a first flexible catheter tube sized and adapted to be inserted into the body of a patient, said first flexible catheter tube having a distal end portion and a body portion located proximally of said distal end portion, said first flexible catheter tube including a distal end opening defined by a rim which is beveled; a second flexible catheter tube sized and adapted to slide in said first flexible catheter tube, said second flexible catheter tube having a distal end portion and a body portion located proximally of said distal end portion and a body portion located proximally of said distal end portion; and balloon means attached to said distal end portions of said first and second catheter tubes and capable of being inverted in said first catheter tube and of being everted therefrom.
Claim 40
Dependent Claim
45 words
The apparatus of claim 34 wherein said distal end of said first flexible catheter tube includes a composition comprising a polymeric material and a radiopaque substance present in said combination in an amount effective to provide a substantial degree of radiopacity to sid distal end.
Claim 41
Dependent Claim
17 words
The apparatus of claim 35 wherein said composition forms a separate element fitted to said distal end.
Claim 42
Dependent Claim
16 words
The apparatus of claim 36 wherein said element has increased flexibility relative to said catheter tube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |